I once saw a guy play 2 matches with the same shirt in extreme humid Carolina Lowcountry at men's 4.5 District Championships.
At an Open level tournament earlier this year, I watched this one guy play three days in a row wearing the exact same clothes: Knee length tan cargo shorts, a ratty old white t-shirt, and black high top Nike Air Jordan basketball shoes. I think he was sleeping in his car, or in a tent, and never changed his clothes (or combed his hair). If you saw him on the street, you'd think he was homeless or something. Anyway, he had a beautiful game and lost a close three setter in the quarterfinals (getting ripped on a crucial line call in that match). I had never seen him play before, but I recognized his name... he used to be ranked inside the top 5 in our section several years ago, and I guess he was making a comeback. I didn't exactly go up and get a sniff test, but he must have reaked!!!